NEED HELP Broken Vacuum Line

benz01

Original poster
Member
Jun 2, 2012
53
Kansas
Last week I changed my leaking Heater Control Valve (#23 in the picture) and I damaged the vacuum line (#1 and #2) without realizing. While trying to find a fix for the damaged line it broke completely. I spoke with a local GM Parts department and was told that #2 was discontinued and #1 they “might be able to get”. The other options are checking a salvage yard or repairing/replacing it somehow. Is it possible to “sleeve” the two sides together with another vacuum line? Any suggestion?
P.S. - sorry the picture is sideways.6CE27BC9-4775-40B3-9D8B-74D49337BBC5.jpeg

Forgot to include this is on a ‘03 EXT, 4.2L engine.
 

Mooseman

Moderator
Dec 4, 2011
25,257
Ottawa, ON
The yard option is probably the easiest and cheapest. Or replace the whole thing with a single rubber line.
 

benz01

Original poster
Member
Jun 2, 2012
53
Kansas
Wound up sleeving the two pieces together using a piece of vacuum tubing from autozone. Runs a little bit better but still got a flashing SES light. This time it gave a P0300 code.
 

Mooseman

Moderator
Dec 4, 2011
25,257
Ottawa, ON
So that would be a misfire. run it just a little longer until it might decide which cylinder is misfiring. Don't run it like that too long or it will cook your cat. If it stays as a P0300, then you have some troubleshooting to do.
 

benz01

Original poster
Member
Jun 2, 2012
53
Kansas
Does it work in reverse? Will a bad catalytic converter cause misfires? Reason I’m asking is because since getting my OBD2 and Fusion app, the coolant temp is reading 190. This may have been going on for longer than I was aware as I was not the main driver. 🙄
 

Mooseman

Moderator
Dec 4, 2011
25,257
Ottawa, ON
This is going off topic. Please start another thread for this issue.
 
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